Sergey Polyakov

JQI Affiliate

Research Scientist

First Name:

Sergey

Last Name:

Polyakov

Phone:

(301) 975-2331

UMD Email:

sergey.polyakov@nist.gov

UMD Office:

NIST Office:

Home Institution:

United States

People Profiles

James R. Williams

James R. Williams is a JQI Fellow and assistant professor of physics, and his chief area of research is experimental condensed matter physics. Specifically, he specializes in understanding why certain one and two-dimensional materials (e.g. topological insulators, graphene) depart from normal conductivity provided by free electrons. Dr. Williams received his bachelors in engineering physics at Santa Clara University. He then went on to get his MS and PhD from Harvard University in 2009 on the subject of grapheme, while studying under Charles M. Marcus. He was then a postdoctoral fellow at Stanford before coming to Maryland.
Michael Foss-Feig

Michael Foss-Feig is a JQI postdoctoral scientist. As an undergraduate at Amherst College, Michael performed some experimental work in solid-state physics with professor Jonathan Friedman. He, then, went to University of Colorado where he received a physics PhD in October 2012. His thesis, prepared under the supervision of Ana Maria Rey, was entitled “Quantum simulation of many-body physics with neutral atoms, molecules and ions.” This work earned him the DAMOP Thesis Prize in June 2013. Now a NRC postdoctoral fellow at NIST working under Charles Clark, Michael’s interests are centered around many-body physics with ultracold atomic, molecular, and optical systems. He also studies long-range interacting systems, such as trapped ions, ultracold dipolar molecules, and Rydberg atoms.
Gretchen Campbell

Campbell is a NIST JQI fellow and works in the Laser Cooling and Trapping group. In her atom circuits lab, reserachers probe Na BECs in toroidal traps. The goals of these experiments include studying superfluidity, as well as superfluid analogs to superconducting circuits. A second experiment with ultracold strontium is being built. She received a Ph.D from MIT in 2006, where she worked with Wolfgang Ketterle and Dave Pritchard. There, she used Rb BECs in optical lattices to study atom interferometry, nonlinear atom optics and the superfluid – Mott insulator phase transition. These experiments included the first direct observation of the atomic recoil momentum in dispersive media. More recently, she worked with Jun Ye on precision measurements and frequency metrology with an ⁸⁷Sr optical lattice clock.
Nicholas Grabon

Nicholas Grabon is a JQI graduate fellow who received an undergraduate degree in physics at the University of Wisconsin-Madison. There, he helped design silicon chips with embedded quantum logic. At JQI, he previously worked on the theory of topological states on a lattice containing individual sites. Now, he is working with Vladimir Manucharyan to build smaller resonators with higher quality, design (fluxonium) qubits with decreased noise and better understand many-body physics.
Stephen Powell

Stephen Powell, a former JQI postdoctoral fellow at CMTC, now works at the Nordic Institute of Theoretical Physics or Nordita in Stockholm, Sweden. His research in the group of Sankar Das Sarma centered around strongly correlated systems with a specific focus on frustrated magnetism and ultracold gases. At Nordita, he will continue this line of research, which is at the meeting point of condensed matter and atomic physics. In talking of his postdoctoral experience he says, “Something I've particularly enjoyed about being at JQI is having close contact with various experimental groups here.”
Efim Rozenbaum

Efim Rozenbaum is a graduate fellow at JQI who studied physics as an undergraduate and graduate student at St. Petersburg State University. His undergraduate thesis focused on new numerical methods for solving the equations that govern quantum systems with axial symmetry, and his Master’s thesis continued this work for highly charged heavy ions. Now, he works with JQI and the Condensed Matter Theory Center to study the effect of interactions on dynamical localization, the signatures of chaotic transitions in quantum dynamics and non-Markovian soliton dynamics with non-Ohmic friction.

Sergey Polyakov

James R. Williams

Michael Foss-Feig

Gretchen Campbell

Nicholas Grabon

Stephen Powell

Efim Rozenbaum

About JQI

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Sergey Polyakov

James R. Williams

Michael Foss-Feig

Gretchen Campbell

Nicholas Grabon

Stephen Powell

Efim Rozenbaum

About JQI

Contact

Questions?